Grundfos Pump Audit Achieves Energy Savings with Replacement of One Year Old Booster

Overview_TEXT

Overview

Towering 30 floors in uptown Toronto is a 255 unit condominium building that had a one year old booster system that was failing to meet water pressure demand. The existing variable speed system was unable to provide the top floor residents with enough domestic water pressure. Lack of water pressure also meant that the rooftop mechanical equipment wasn’t supplying residents with air-conditioning.

Feras Marish of Grundfos was contacted and asked to conduct a pump audit and give recommendation on a solution. After profiling the existing systems flow, pressure and power consumption, it was revealed that the existing system was undersized in pressure capacity, causing the cooling equipment to malfunction. Also revealed was that both variable speed pumps were forced to run at full speed, wasting a significant amount of energy and costing the owners over $15,000 per year in energy costs.

Once the profiles were analyzed, Grundfos recommended installation of a BoosterpaQ system consisting of 3 CR vertical inline multistage pumps with 7.5 HP motors. The BoosterpaQ was chosen for the following reasons:

  • The booster system is ideal for water supply and pressure boosting in multi-story buildings where needs can vary significantly throughout the day. The CR range of pumps provides the best foundation for the booster system. CR’s are extremely reliable and have the highest efficiency when compared to any other pumps of their kind in the market.
  • The MPC (multi-pump controller) controls the number of CR’s in operation, as well as the individual CR’s. The MPC alternates between lead and lag pumps, ensuring equal run hours on all of the CR’s. With built-in pump curves, it can identify if it is more efficient to operate two or more pumps at a slow speed, rather than one pump at full speed.
  • The VFD (variable frequency drive) located in the MPC ensures that the system goes into standby mode when there is no demand, decreasing energy consumption and saving on energy costs.
  • The system is a compact unit that comes preassembled and is built to last. It is easy to install, operate and service, saving on maintenance costs.

Installation of the new, properly sized BoosterpaQ took place this past June. Its projected energy consumption is 13,920 kWh, saving $15,176 annually in energy costs. Additionally, the building owners received an incentive amount of $13,976 from Toronto Hydro for usage of high efficiency equipment.  





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Topic:

Outdated pressure booster replaced with energy efficient Grundfos BoosterpaQ

Location:

Toronto, Ontario

Company:

30-Floor 255 Unit, Condominium Building

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Contact

If you need a similar solution, please contact us for further information.

Telephone

(905) 829-9533

Contact

If you need a similar solution, please contact us for further information.

Telephone

(905) 829-9533